Nut-lock.



cr mes.

CHARLES e. WILKS, or comma, ARKANSAS.

noT-LocK.

-Application filed August 31, 1915.

To all whom it may concern:

Be it known that I, CHARLES G. Willis, a citizen of the United States, residing at Cotter, in the county of Baxter and State of Arkansas, have invented certain new and useful Improvements in Nut-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The primary object of this invention is to admit of a nut being conveniently, expeditiously and securely locked to a bolt.

A further object of the invention is to provide a specially constructed nut and bolt and locking means for carrying out the above object, which can be manufactured cheaply, will be durable, and eflicient in operation.

Other objects will appear and be better understood from that embodiment of my in vention of which the following is a specification, reference being had to the accompanying drawings forming a part thereof, in which:

Figure 1 is a top plan view of the nut lock constructed in accordance with my invention and showing the nut in section so as to expose the locking means. Fig. 2 is a front elevation of the nut removed from the bolt. Fig. 3 is a sectional side elevation, taken on the line 2-2 of Fig. 1. Fig. 4c is a perspective view of the locking key.

Referring to the drawings, the numeral 1 designates a bolt having at one end a head 2 p and having its opposite end threaded, as at 3. The threaded end of the bolt is terminally provided with a transversely extending slot 4, which opens into the said terminal of the bolt and into opposite sides of the bolt, and has oneend communicating with a longitudinal groove 5 formed in the side of the bolt. The slot is of a depth approximately twice that of the groove 5 and the said slot and. groove are rectangular incross section.

6. The walls of the bore of the nut 6, are, as shown in Fig. 2, provided at diametrically opposite points with grooves 7, the said grooves being, as shown in Fig. 2, rectangular in cross section and one of the grooves is Specification of Letters Patent.

Patented Sept. 12, 1916.

Serial No. 48,334.

adapted to register, when the nut is in adjusted position, with the longitudinally extending groove 5 in the bolt.

Associated with the nut and bolt is a looking key 8. This locking key is L-shaped in configuration and when in position has the longer arm 9 located within the groove 5 in v the bolt, and in the adjacent registering groove in the nut, and the shorter arm of they key is positioned within the transverse groove 4 in the bolt. The longer arm of the key is of a thickness equal, approximately, to the combined depth of the registering groove in which it is positioned, so that the openings 11 and when so positioned the terminals of the companion portions of the pin 12, are deflected in opposite directions, as Sl1OWI1 1I1 Fig." 1, wherebythe key 8 will be held from longitudinal movement on the bolt.

By referring to Figs. 1 and 3 of the drawings, it will be seen that when the key and cotter pin are n operative positions, the

said pin and the shorter arm 10 of the key will lie wholly within the plane of the adjacent end of the bolt, that there will be no projection extending beyond the end of the bolt torcome in contact with the object or to become broken.

Having thus described my invention what I claim as new, is:

In a nut lock, the combinationof a bolt having a longitudinally extending groove in one side thereof, and a transvei'sely'extcnding SlOt lll one end thereof opening into the said end and opposite sidesof the bolt and Adjustably mounted on" the bolt 1 is a nut having a depth exceeding the depth of the groove, and having one end communicating the groove inthe bolt, an L-shaped key ha'vadjacent end of the bolt and adapted to pre-- 10 ing the long arm thereof extending into the vent longitudinal movement of the key. registering grooves and having its shorter In testimony whereof I afiix my signature arm positioned Within the slot and rear of in presence of two Witnesses.

the openings and being of a thickness considerably less than the thiclmess of the CHARLES W ILKS longer arm, and a pin extending through the Vitnesses:

said alined openings in the Walls of the slot E. J. LOOP,

and located Wholly Within the plane of the H. W. WHITE.

Gopiei of this patent me} be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

